/*
 * Copyright 2021 CloudWeGo Authors
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package utils

// Slice is an abstraction of []interface{}.
type Slice []interface{}

// Push pushes an interface to the slice.
func (s *Slice) Push(any interface{}) {
	*s = append(*s, any)
}

// Pop pops the last element from the slice.
func (s *Slice) Pop() (res interface{}) {
	if size := len(*s); size > 0 {
		res = (*s)[size-1]
		*s = (*s)[:size-1]
	}
	return
}
